First Class Client Care

First Class Client Care

We put you first, deliver results, and keep you in the picture

We Put Our Clients First

By choosing to work with Grantham Detectives, you will benefit from working with a professional investigation company that puts you first, delivers results and keeps you in the picture.

Whichever branch you choose to instruct you can be assured that we will operate with the utmost professionalism, integrity and always legally and within the law.

Our clear and simple pricing structure means that you know exactly what you will be paying for. There will be no hidden costs or unexpected charges to pay.

Dedicated Case Manager

Each client receives a dedicated case manager who remains available as a consistent point of contact throughout the case.

This means you will always be able to contact us about your case during office hours, and the person you speak to will be familiar with the details of your investigation.

Online Case Management

Most investigations can be managed 24/7 via our secure online portal where the client can login to view their latest case updates, reports, and any evidence gathered.

Confidentiality Guaranteed

Grantham Detectives guarantee that all enquiries and case details are treated in the strictest of confidence.

Contact Us

In the first instance we always recommend that you contact one of our Case Managers to discuss the most cost-effective way forward.

For Free Advice Phone: 01476 468 085

Grantham Detectives offer services to cover all eventualities. To book a service today or to find out more information, call 01476 468 085.

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Grantham Detectives Services

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  • Associate Members of the American Association of Police Polygraphists
  • Members of the American Polygraph Association
  • Now Accepting All Popular Forms of Payment
  • Insured with HENSURE
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Why Choose Grantham Detectives?

  • Case Management Team
    Grantham Detectives experienced management team and highly skilled private investigators ensure that your case is carried out professionally and efficiently.

Grantham Detectives FAQ

  • To hire your company is more expensive than some others that I have seen. Why is that?
  • How Much is it to Hire a PI?
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Nationwide Client Comments

  • I was pleasantly surprised to find Newcastle Detectives not only the most competitive in price, but second to none when it came to customer service. Top marks...
    Geoff, Newcastle
  • I was in a situation that I couldn't resolve without professional help. I felt that because my situation was so emotional, and to do with adultery, I wanted a...
    Ailish, Aberdeen
  • A first-rate service, with friendly staff and very competitive prices!
    Aaron, Peterhead
  • My company has hired Aylesbury Detectives a few times over the years to gather evidence for us, and they have worked discreetly at all times. Their...
    Mike, Buckingham
  • Hiring a private investigator is not something I would normally do, but I was in a situation that I simply couldn't resolve on my own. I needed evidence that...
    David, Bath

About Grantham

Grantham Detectives have been operating in Grantham and the East Midlands for almost 20 years.

  • Grantham is within short walking distance of an ancient Roman road, and was the scene of Oliver Cromwell's first advantage over Royalists during the English Civil War at Gonerby Moor.
  • Grantham is a market town within the South Kesteven district of Lincolnshire, England.
  • Grantham bestrides the East Coast Main Line railway (London-Edinburgh), the historic A1 main north-south road, and the River Witham.
  • Grantham is located approximately 26 miles (42 km) south of the city of Lincoln, and approximately 24 miles (39 km) east of Nottingham.
  • Grantham's population at the 2001 census was 34,592 with around 18,000 households, excluding the adjacent village of Great Gonerby.
  • With the housing estates in Londonthorpe and Harrowby Without (around a population of 4,500), this figure would be around 42,000.
  • Grantham is best known as the birthplace of former prime minister Margaret Thatcher, and the place where Isaac Newton went to school.
  • Grantham is also notable for having the first female police officers in the United Kingdom, in 1914.
  • Grantham produced the first running diesel engine in 1892, and the UK's first tractor in 1896.
  • Grantham's town boundary crosses the A1 to the west at the Dysart Road bridge.
  • Grantham crosses the B1174 at Gonerby Hill.
  • All of the Manthorpe estate is aprt of Grantham, but the (smaller) Manthorpe village and the church is part of Belton and Manthorpe.
  • Grantham passes to the west of Harrowby Hall and over Hall's Hill.
  • Grantham crosses the A52 at the start of Somerby Hill.
  • Grantham borders Little Ponton, and crosses the B1174 at the southern end of the Spittlegate Level Industrial Estate
  • Grantham Museum is on St Peter's Hill.
  • Grantham has the A1 main road from London to Edinburgh running past it (the town was bypassed in 1962).
  • Grantham's shopping High Street, until recently, was part of the busy A52 which runs to nearby Nottingham.
  • Grantham is also well known for its indoor and outdoor bowls player's who have represented the clubs within many county and national competitions.

Grantham Detectives

Professional, efficient and discreet private investigations in 158 UK cities, backed by an extensive UK network. Grantham Detectives serve Grantham and localities throughout the East Midlands.

At Grantham Detectives we pride ourselves on our professionalism. We have been assisting Corporate and Private Clients with their cases since 1999, and are always ready to go that extra mile for our clientele.





Grantham Detectives - 95% Success Rate, 100% Legal

If you have any questions about our private investigations services in Grantham, or private detective packages, then don't hesitate to call our friendly team on 01476 468 085 or contact us via the website.

Grantham Detectives - The No1 Detective Agency in Grantham

Serving Grantham, Harlaxton, Barrowby, Belton, Welby and all areas in and around the East Midlands